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8. Ninety (90) days prior to discontinuing the use of this <br /> site for waste disposal , the di-scharger shall f-iubmit a <br /> technical report to the Board describing the mothods, and <br /> controls to be used to assure protection of the quality <br /> of surface and ground waters of the area during final <br /> operations and with any proposed subsequent use of the <br /> land. This report shall be prepared by or under the <br /> supervision of a registered engineer or a certified <br /> engineering geologist. The method used to close the site <br /> and maintain protection of the quality of surface and <br /> ground waters shall comply with the waste discharge re- <br /> quirements established by -the Board . <br /> 9. This Board considers the property owner to have a con- <br /> tinuing responsibility for correcting any problems which <br /> may arise in the future as a result of this waste dis- <br /> charge or water Applied to this property during sub- <br /> sequent use of the land for other purposes . <br /> 10, In the event of any change in control or ownership of <br /> this treatment and disposal system, the discharger shall <br /> notify 'this Board of such change and notify the succeed- <br /> ing owner or operator of the existence of this order. <br /> 11 . The Board will review this order periodically and may <br /> revise the requirements when necessary. <br /> 12. The discharger shall follow the recommendations for con- <br /> struction, operation, and maintenance contained in the <br /> consulting engineer' s project report dated ..-July, 1972. <br /> This shall include placement of a two foot thick clay <br /> liner compacted to a permeability of 10-8 cm/sec or <br /> underlying the pesticide washwater evaporation <br /> pond and 1p s. Pe=, eable zones <br /> or zones of perched water encountered in perimeter <br /> slopes shall be sealed by placing a two foot soil liner <br /> of 10-6 cm/sec permeability or less. <br /> I , James A. Robertson, Executive Officer, do hereby certify the fore- <br /> going is a full , true, and correct copy of an order adopted by the <br /> California Regional Water Quality Control Board, Central Valley Region, <br /> on 23 March 1973 . <br /> !)Y <br /> Executive Officer <br /> Amended 3/23/73 scm/ca -- 4 <br />